Space and Time is an open source decentralized Layer 1 blockchain where the validator verifies and signs every piece of data inserted. Instead of storing raw data, they update each table's encrypted promises (similar to digital fingerprints) and collectively sign those promises before they are recorded on the chain. This ensures that the structure and content of each table are locked and tamper-free. In addition to the validator, the prover node also monitors query requests from the EVM contract. When a query is triggered, the prover runs SQL logic off-chain against the verified data—whether that data comes from the SXT Chain table or blockchain data indexed by a redundant encrypted secure server. The proofer then generates a zero-knowledge proof that the query was executed correctly on untampered data, and ZK-oracle passes the result back to the EVM contract on the chain via a callback.